Description:
The NTE870 consists of two current controlled transconductance amplifiers each with differential in puts and a push–pull output. The two amplifiers share common supplies but otherwise operate inde pendently. Linearizing diodes are provided at the inputs to reduce distortion and allow higher input levels resulting in a 10dB signal–to–noise improvement referenced to 0.5 percent THD. Controlled impedance buffers are provided which are especially designed to complement the dynamic range of the amplifiers.

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V+/V– 36V or . . . . . . . . . . . . . . . . . . . . . . . ±18V
Differential Input Voltage, VID . . . . . . . . . . . . . . . . . . . . . . . . . ±5V
Diode Bias Current, ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Amp Bias Current, IABC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Buffer Output Current, Io . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . 570mW
DC Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V–
Operating Temperature Range, Topr . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . –40° to +125°C